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Page 101 / 126 Scroll up to view Page 96 - 100
030-300613 Rev A
101
August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
14.3.5
Public LAN
The following screen will appear if you select
Advanced > LAN > Public LAN
from the main menu. This screen
contains the settings for determining how your Gateway will interact with the local devices connected to it. It is
recommended that these settings not be changed. This feature is mutually exclusive with the VLAN feature. If you
change the settings in this screen, click
apply
and then
OK
. If you click
reset
or
Cancel
, the screen will return to its
previous settings.
Public LAN allows the Gateway to issue DHCP addresses from its Public LAN IP address pool. IP addresses served
from the Public LAN pool bypass the NAT interface and are accessible from the WAN, allowing your computer to
have global address ability. To use the Public LAN feature, your ISP must support Multiple IP Address Passthrough.
NOTE:
1. By enabling the DHCP server for Public LAN, you automatically disable the DHCP Server for Private LAN. By
default, the Gateway’s Public LAN DHCP server is disabled, and the Private LAN DHCP server is enabled.
Whenever the Public LAN DHCP server is disabled, the Gateway will not issue public LAN IP addresses to
devices on your network.
2. Public LAN IP addresses are provided by your ISP. If you have questions about this feature, contact your ISP for
details.
3. By default, the Public LAN DHCP server is disabled. It is recommended that these settings not be changed unless
you are instructed to do so by your ISP.
Public LAN DHCP Server Enable
Click this check box to enable the Public LAN DHCP Server feature.
DHCP is an Internet standard that allows the Gateway to automatically
assign IP addresses to devices connected on the LAN. It is recommended
that you enable this for the public LAN. By default,
Public LAN DHCP
Server Enable
is enabled (checked).
Public LAN Enable
Click this check box to enable the Public LAN feature. This setting
enables the Public interface, which allows for a global subnet to exist
behind your Gateway. Westell recommends that you leave this feature
enabled. By default,
Public LAN Enable
is enabled (checked).
Public LAN IP Address
Displays your Gateway’s IP address.
Public LAN Subnet Mask
Displays the Public LAN Subnet Mask that is used to determine if an IP
address belongs to your local network.
Page 102 / 126
030-300613 Rev A
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August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
DHCP Start Address (if DHCP is
enabled for Public LAN)
Displays the first IP address that the DHCP server will provide to assign
IP addresses to local devices.
DHCP End Address (if DHCP is
enabled for Public LAN)
Displays the last IP address that the DHCP server will provide for
automatic configuration of local devices.
DHCP Lease Time (if DHCP is
enabled for Public LAN)
Displays the DHCP lease time in days/hours/minutes/seconds. This is the
amount of time the provided addresses will be valid, after which the
DHCP client will usually re-submit a request. DHCP Lease Time must be
greater than 10 seconds (seconds must be between 0 and 59; minutes must
be between 0 and 59; and hours must be between 0 and 23). By default,
DHCP Lease Time
is set to
01:00:00:00
.
14.4
WAN (Wide Area Network)
This section discusses the
WAN
(Wide Area Network) screens (Connection Overview, ATM Loopback, VersaPort,
VCs, WAN Detection, QoS, Routes, RIP, and Dynamic DNS) of your Gateway and guides you through the
configurable settings.
14.4.1
Connection Overview
The following screen will appear if you select
Advanced > WAN > Connection Setup
from the main menu. Please
refer to section 7, “Accessing Your Gateway,” for detailed information on using this screen.
Page 103 / 126
030-300613 Rev A
103
August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
14.4.2
ATM Loopback
The following screen will appear if you select
Advanced > WAN > ATM Loopback
from the main menu.
This
setting enables an ATM cell loopback on VPI/VCI 0/21. It is recommended that this setting not be changed. If you
change the settings in this screen, click
set
and then
OK
. If you click
reset
or
Cancel
, the screen will return to its
previous settings.
Enable ATM 0/21 Loopback:
Click the
Enable ATM 0/21 Loopback
check box to enable this feature. By
default,
Enable ATM 0/21 Loopback
is enabled (checked).
14.4.3
VersaPort
The following screen will appear if you select
Advanced > WAN > VersaPort
from the main menu. The VersaPort
is a user-configurable networking port. This feature is mutually exclusive with the VLAN feature. The appearance
of the screen will vary, depending on the options selected. If you change the settings in this screen, click
set
and
then
OK
. If you click
Cancel
, the screen will return to its previous settings.
Page 104 / 126
030-300613 Rev A
104
August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
Page 105 / 126
030-300613 Rev A
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August 2009
User Guide
VersaLink Wireless Gateway (Model 7500)
Select how VersaPort will
be used
Click the port type option that will be used for configuring the Gateway.
•
LAN Ethernet Port: Used as a normal LAN Ethernet port.
•
WAN Uplink Port: Used as an Ethernet WAN uplink port.
WAN Ethernet Configuration
Protocol
Click this drop-down menu to select the protocol to use on the WAN Port.
•
ROUTED: Routed IP.
•
PPPoE: Point-To-Point over Ethernet.
Router Settings
DHCP Client
Click the option to enable or disable the DHCP Client feature. These options are
only available when selecting
ROUTED
for the
WAN Ethernet Configuration
protocol.
IP Address
Displays the IP address for your Gateway. This option is editable only when the
protocol is
ROUTED
and the
DHCP Client
is disabled.
Subnet Mask
Displays the Subnet Mask. This option is editable only when the protocol is
ROUTED
and the
DHCP Client
is disabled.
Gateway
Displays the Gateway address used for sending the packet if it is not on the local
LAN. This option is editable only when the protocol is
ROUTED
and the
DHCP
Client
is disabled.
DNS Primary
Displays the DNS Primary address for resolving machine names.
DNS Secondary
Displays the DNS Secondary address for resolving machine names.
Proxy ARP
Click the option to enable or disable the Proxy ARP feature. When enabled, the
Gateway replies to WAN ARP’s for Public LAN Addresses.
PPPoE Settings
The LCP and MRU settings are advanced options. Modifying these settings can cause service disruptions and is
not recommended unless explicitly instructed by your ISP.
DNS Primary
Displays the DNS Primary address for resolving machine names. This is provided
by your ISP.
DNS Secondary
Displays the DNS Secondary address for resolving machine names. This is provided
by your ISP.
MRU/MTU Negotiation
Click this check box to enable or disable the Maximum Received Unit (MRU)
feature, which, when enabled, would enforce MRU negotiations. By default,
MRU/MTU Negotiation
is disabled (unchecked). Note: Enable this option only at
your ISP’s request.
Size
Displays the size of the MRU.
LCP Echo Disable
Click this check box to enable or disable the LCP Echo feature. By default,
LCP
Echo Disable
is disabled (unchecked).
LCP Echo Failures
Displays the number of continuous LCP echo non-responses received before the
PPP session is terminated. The number must be between 1 and 30 inclusive.
LCP Echo Duration
Displays the interval between LCP Echo transmissions with responses. Number
must be between 5 and 300 seconds inclusive and greater or equal to
LCP Echo
Retry Duration
.
LCP Echo Retry Duration
Displays the interval between LCP Echo after no response. Number must be
between 5 and 300 seconds inclusive.
Tunneling
Click this check box to enable or disable the Tunneling feature. If Enabled, this
option allows PPP traffic to be bridged to the WAN. By default,
Tunneling
is
enabled (checked). Note: Tunneling is available in PPPoE mode only.
Proxy ARP
Click this check box to enable or disable the Proxy ARP feature. When enabled, the
Gateway replies to WAN ARP’s for Public LAN Addresses. By default,
Proxy ARP
is disabled (unchecked).

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